CN107079234A - For the paging of wireless device, radio access node, the method wherein performed, computer program and computer-readable recording medium - Google Patents
For the paging of wireless device, radio access node, the method wherein performed, computer program and computer-readable recording medium Download PDFInfo
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- CN107079234A CN107079234A CN201480082532.2A CN201480082532A CN107079234A CN 107079234 A CN107079234 A CN 107079234A CN 201480082532 A CN201480082532 A CN 201480082532A CN 107079234 A CN107079234 A CN 107079234A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/005—Transmission of information for alerting of incoming communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/18—Management of setup rejection or failure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Embodiment hereof is related to a kind of method for being used to handle the wireless device (10) in cordless communication network (1) performed in radio access node (12), the cell (11) that the radio access node is served in the cordless communication network (1)；The radio access node (12)：The paging request that (501) are directed to the wireless device (10) is received from network node (13,14), the paging request includes indicating, the instruction indicates that the paging request function relevant with the wireless device (10) is associated, and the connection that the function need not be between the wireless device (10) and the radio access node (12) is established；With beep-page message come the wireless device in paging (502) cell (11)；The response that (503) come from the wireless device (10) is received in response to the beep-page message；And the instruction of foundation need not be connected based on the instruction in the instruction in the paging request received and/or the response received, refuse the connection of (505) from the wireless device (10) to the radio access node (12) to set up, or connection of the release (506) from the wireless device (10) to the radio access node (12).
Description
Technical field
Method, computer program and meter that the embodiments herein is related to wireless device, radio access node, wherein performed
Calculation machine readable storage medium storing program for executing.Specifically, the embodiments herein is related to handles wireless device within a wireless communication network.
Background technology
In typical cordless communication network, wireless device (also referred to as mobile station and/or user equipment (UE)) is via nothing
Line is electrically accessed network (RAN) and communicated with one or more core networks (CN).RAN covers the ground for being divided into cell area
Manage region, wherein each cell area by such as base station (such as radio access node service of radio base station (RBS),
Base station is also known as " NodeB " or " eNodeB " in some networks.Cell is in base station site or in day by radio base station
The geographic area of radio covering is provided in the case of line and radio base station be not juxtaposed at antenna sites.Each cell by
Mark for marking in cell in the local radio region of broadcast.Cell is uniquely identified in whole cordless communication network
One other identification is also broadcasted in the cell.One base station can have one or more cells.Base station passes through in radio frequency
The air interface of upper operation is in the range of base station with wirelessly setting in downlink (DL) transmission or up-link (UL) transmission
Standby communication.
Universal Mobile Telecommunications System (UMTS) is the come from (GSM) evolution of the second generation (2G) global system for mobile communications
3 g mobile communication system.UMTS Terrestrial Radio Access Networks (UTRAN) be substantially by WCDMA (WCDMA) and/
Or high-speed packet access (HSPA) is used for the RAN of wireless device.In referred to as third generation partner program (3GPP) forum,
Telecommunication supplier proposes and decided through consultation for third generation networks and especially UTRAN standard, and inquire into enhanced data rate
And radio capability.In RAN some versions (for example in umts), some base stations can for example by by land cable or
Microwave is connected to controller node, such as radio network controller (RNC) or base station controller (BSC), and it is supervised and assisted
Adjust the various activities of connected multiple base stations.RNC is typically attached to one or more core networks.
Specification for evolved packet system (EPS) is completed in third generation partner program (3GPP), and
This, which is operated in upcoming 3GPP versions, proceeds.EPS is wirelessly electrically accessed including also referred to as Long Term Evolution (LTE)
Evolved universal terrestrial radio access network (E-UTRAN) and the also referred to as evolution of System Architecture Evolution (SAE) core network
Block core (EPC).E-UTRAN/LTE is the modification of 3GPP radio access technologies, and wherein radio base station is directly connected to
EPC core nets, without being attached to RNC.In general, in E-UTRAN/LTE, RNC function is distributed in radio base station
(such as the eNodeB in LTE) is between core network.Therefore, EPS radio access network (RAN) has substantially " flat
It is flat " framework, it includes the radio base station do not reported to RNC.
At present for the communication in cordless communication network future development conventional wisdom include substantial amounts of small autonomous without
Line equipment, normally more or less infrequently (such as weekly, per minute once) sends and receives only low volume data for it
Or be polled for data.These wireless devices be assumed it is not associated with the mankind, but different types of sensor or
Actuator, it is communicated with the application server inside or outside cordless communication network, and the application server configuration is wireless
Equipment simultaneously receives from it data.Therefore, such communication is commonly known as Machine To Machine (M2M) communication, and wirelessly
Equipment is referred to alternatively as machinery equipment (MD).3GPP standardization in, corresponding alternative terms be machine type communication (MTC) and
MTC device, latter of which is the subset of more general terms user equipment, UE or wireless device.Fig. 1 is shown for machine type
The current state of the 3GPP grid of reference frameworks of type communication.In figure, it with the addition of and referred to for double frames of MTC special entities
Show.At present, it is that unique function that service capability server (SCS) is specified is such as MTC device (for example, with MTC UE applications
Wireless device or UE) triggering, for Internet Protocol (IP) address of the MTC device it is unavailable or can not by SCS and/
Or application server (AS) reaches.Trigger can make MTC device perform the specific action of application, including initiate and SCS or AS
Communication.SCS may also be considered as the potential site for following MTC correlated characteristics.It is being expressed as the indirect model of model 1
In, AS is connected to SCS, and the SCS is connected to MTC IWFs (IWF).MTC-IWF is via home subscriber servers (HSS)
It is connected to MTC authentication, authorization, accountings (AAA) server.In the direct modeling for being expressed as model 2, AS is connected to gateway
GPRS Support Node (GGSN) or grouped data network gateway (P-GW).Model can also be combined into mixed model.Chain of command
With dashed lines labeled, and user plane is with the wire tag between node.
Due to the typical use of the hypothesis of the property and MTC device of MTC device, result is that MTC device generally has to very
Energy-conservation, because external power source is generally unavailable, and due to often changing the battery of MTC device or being filled for the battery of MTC device
Electricity is both unpractiaca and economically infeasible.In some scenes, MTC device be not possibly even it is battery powered,
But collection of energy can be instead relied on, i.e., energy is collected from environment, utilizing with waiting for an opportunity may be from sunshine, temperature ladder
The usual very limited amount of energy of the taking-ups such as degree, vibration.
Random access procedure
Before wireless device can communicate with cordless communication network, wireless device has to carry out random access procedure.With
Machine access procedure includes four actions explained with reference to Fig. 2.The process based on competition is illustrate only in Fig. 2.
Action 21:Msg1
Wireless device selects 64 available random access channel (RACH) one of lead codes or targeting sequencing.
Wireless device also needs to provide the mark of oneself to cordless communication network or base station so that cordless communication network can
To be addressed to it in being acted in next step.The mark used is referred to as Random Access-Radio Network Temporary Identifier by wireless device
(RA-RNTI).Substantially, it is not some values sent by wireless device, but it is interesting that RA-RNTI be according to exist
The timeslot number determination of RACH preambles is sent in RACH requests.
If wireless device is not received by any response from cordless communication network, it is increased with fixed step-length
Plus its power and again send RACH lead codes.
Action 22:Msg2
Base station sends " random to wireless device being addressed on RA-RNTI downlink sharied signal channel (DL-SCH)
Access response ", such as explained on RA-RNTI calculating in action 21, the RA-RNTI is according to have sent RACH lead codes
What time slot was calculated.
Message accidental access response carries following information：
O temporary cell radio networks temporary mark (C-RNTI)：Base station is provided for further logical to wireless device
The one other identification of letter, it is referred to as interim C-RNTI.
O timing advance values：Base station informs about wireless device and changes its timing, so as to compensate by wireless device and base station
The round-trip delay that causes of distance.
O uplink grant resources：Base station will assign initial resource to wireless device so that wireless device can be used
Ink Shared Channel (UL-SCH).
Action 23:Msg3
Using UL-SCH, wireless device is sent " RRC connection request message " to base station, and RRC represents radio resource control
System.
Interim C-RNTI that wireless device is assigned by base station in previous action is identified.
RRC connection request message includes：
O identity of wireless device；Such as Temporary Mobile Subscriber mark (TMSI) or random value,
If ■ wireless devices had previously had been coupled to same cordless communication network, TMSI is used.Use TMSI values, nothing
Line equipment is identified within the core network
If ■ wireless devices are first connected to cordless communication network, random value is used.Because due to simultaneously many
Individual request arrives simultaneously, there is the possibility that interim C-RNTI has been assigned to more than one wireless device in previous action
Property, explanation is collided into scene later.
Reason is set up in o connections：The reason for display wireless device requires connect to cordless communication network.
Action 24:Msg4
Base station is responded with contention resolution message to the wireless device that its message is successfully received in action 23.
The message is addressed to TMSI values or random value, but comprising the new C-RNTI that further communicates will be used for.
Normal paging：
When cordless communication network wants paging wireless device, cordless communication network is to being used as one of identical tracing area
Point or tracking zone list a part all base stations send beep-page message.The message package is wanted the wireless of paging containing network and set
Standby mark (ID).The beep-page message sent on PCH (PCH) is set up in base station.
The wireless device for monitoring PCH receives beep-page message, and attempts by the Stochastic accessing mistake as described in figure 2 above
Journey sets up RRC connections.
Then cordless communication network responds to RACH requests, it is allowed to which wireless device sets up RRC connections.Wireless device can
Some data can be received, RRC connections afterwards no longer need and can be released.
Paging is more fully described with the action related to some network nodes below.
Gateway (S-GW):
1. the DL data for wireless device are reached at S-GW.
2.S-GW creates DL data notification message, and the DL data notification message is transmitted into mobility management entity
(MME)。
Mobile management entity (MME):
1. when wireless device is in EPS Connection Management (ECM)-idle condition, position is at every tracing area (TA)
On the basis of to known to MME.Therefore, all base stations in the necessary paging TA groups of MME.
2. in a case where, MME starts timer " 3413 "
A. paging is for packet switch (PS) data
B. wireless device is addressed by System Architecture Evolution (SAE)-TMSI
3. tracing area identifies (TAI) list：MME notifies base station broadcast paging messages in above-mentioned TAI.
4.MME sends DL data notifications to S-GW and confirms (ACK) message.
Base station:
1. base station receives S1 Application Protocol (S1AP) message for indicating paging from MME, and base station builds RRC pagings and disappeared
Breath.
2. base station generation can include the beep-page message of multiple paging acknowledgments with the multiple wireless devices of paging.
Wireless device:
1. wireless device wakes up at each paging occasion, and in physical downlink control channel
(PDCCH) paging (P)-RNTI is searched in transmitting.
2. if wireless device finds P-RNTI, wireless device is shared to the physical down link present in PDCCH
Channel (PDSCH) information is decoded.
3. wireless device is decoded to the beep-page message from the PDSCH resource blocks for wherein sending PAGING message.
4. if wireless device does not find the identity of wireless device of oneself, wireless device will return and monitor paging occasion.
5. when wireless device finds its mark in the message, it triggers random access procedure, as shown in Fig. 2 then building
Vertical RRC connections.
6. if PAGING is directed to ps domain, wireless device Non-Access Stratum (NAS) layer triggers (SERVICE REQUEST),
Otherwise, if PAGING is directed to circuit switched fallback (CSFB), the service request of wireless device triggering extension.
The communication of currently paging and wireless device therefore as described above is in signaling and therefore in wireless device
It is too high for wireless device cost in terms of the battery consumption at place.
The content of the invention
The purpose of the embodiments herein is to provide a kind of handles the logical of wireless device or wireless device in an efficient way
The mechanism of letter.
According on one side, by being performed in radio access node for handling wireless in cordless communication network
The method of equipment realizes the purpose.Radio access node is the cell serves in cordless communication network.Wirelessly it is electrically accessed section
Point receives the paging request for wireless device from network node.Paging request include indicate, the instruction indicate paging request with
The function relevant with wireless device is associated.The function does not need the connection between wireless device and radio access node to be built
It is vertical.Radio access node is with beep-page message come the wireless device in paging cell.Radio access node is received from wireless
The response in response to the beep-page message of equipment.Then, radio access node is based on the instruction in the paging request received
And/or the instruction in the response received need not connect the instruction of foundation, refuse from wireless device to radio access node
Connection set up, or connection of the release from wireless device to radio access node.
According on the other hand, the purpose by provide it is a kind of perform in a wireless device be used for handle cordless communication network
In the method for communication realize.Radio circuit includes serving the wireless device in the cell of radio access node
Radio access node.Wireless device receives message from radio access node, and the message includes related to wireless device
The associated paging of function is requested to be indicated.The function does not need the connection quilt between wireless device and radio access node
Set up.Wireless device is responded in response to the message received to radio access node transmission, and the response includes indicating not needing
Connect the instruction set up.
According on the other hand, the purpose is a kind of for the wireless of processing wireless device within a wireless communication network by providing
Node is electrically accessed to realize.Radio access node is configured as：The cell served in cordless communication network.Wirelessly it is electrically accessed
Node is configured as：The paging request to wireless device is received from network node.Paging request includes instruction, and the instruction indicates to seek
Call for asking the function related to wireless device to be associated.The function need not be between wireless device and radio access node
Connection is established.Radio access node is configured as：With the wireless device in beep-page message paging cell, and receive and come from
The response in response to the beep-page message of wireless device.Radio access node is additionally configured to：Please based on the paging received
Instruction in the instruction asked and/or the response received need not connect the instruction of foundation, refuse from wireless device to nothing
The connection that line is electrically accessed node is set up, or connection of the release from wireless device to radio access node.
According to another aspect, the purpose is by providing a kind of wireless device for being used to handle the communication in cordless communication network
To realize.Wireless device is configured as：Connect in the cell of radio access node within a wireless communication network by the radio
Ingress is serviced.Wireless device is configured as：Message is received from radio access node, the message includes paging and wireless device
Related function is associated requested instruction.The function does not need the connection quilt between wireless device and radio access node
Set up.Wireless device is configured as：Send and respond to radio access node in response to the message received, the response includes referring to
The instruction of foundation need not be connected by showing.
In addition, embodiment provides a kind of computer program and is stored thereon with the computer-readable storage of computer program
Medium, the computer program includes instruction, makes at least one computing device sheet when performing at least one processor
The method of text.
The advantage of the embodiment of process claimed is that network (such as MME or radio access node) is allowed to hold
Row function, for example, found wireless device using the signaling message of the minimum of wireless device and appeared in which cell.Herein
In embodiment allow wireless device power saving, this especially needs when wireless device seldom communicates (such as in MTC device).This
Cause the efficient process of the efficient process of wireless device or the communication of wireless device.
Brief description of the drawings
Embodiment will be more fully described relative to accompanying drawing now, in the accompanying drawings：
Fig. 1 shows the framework of MTC communication；
Fig. 2 shows the schematic diagram of random access procedure；
Fig. 3 shows the schematic overview figure for describing the cordless communication network according to embodiment hereof；
Fig. 4 shows the combination flow chart and signaling schemes of description embodiment hereof；
Fig. 5 shows the flow chart of the method in the radio access node described according to embodiment hereof；
Fig. 6 shows the flow chart of the method in the wireless device described according to embodiment hereof；
Fig. 7 shows the block diagram for describing the radio access node according to embodiment hereof；And
Fig. 8 shows the block diagram for describing the wireless device according to embodiment hereof.
Embodiment
The embodiments herein relates generally to cordless communication network.Fig. 3 is the schematic general of description cordless communication network 1
State.Cordless communication network 1 includes one or more RAN and one or more CN.Cordless communication network 1 can use a variety of differences
Technology, only provide it is some it is possible realize, such as Long Term Evolution (LTE), LTE are senior, WCDMA (WCDMA), complete
Ball GSM/be used for enhancing data rate (GSM/EDGE), the World Interoperability for Microwave Access, WiMax of GSM evolution
Or Ultra-Mobile Broadband (UMB) (WiMax).Cordless communication network 1 is illustrated as LTE network herein.
In cordless communication network 1, also referred to as the wireless device 10 of mobile station, user equipment and/or wireless terminal via
Radio access network (RAN) is communicated with one or more core networks (CN).It will be appreciated by those skilled in the art that
" wireless device " is non-restrictive term, and it means any wireless terminal, user equipment, machine type communication (MTC) equipment, set
It is standby to arrive equipment (D2D) terminal or node, for example personal digital assistant (PDA), laptop computer, mobile phone, sensor, after
Electrical equipment, mobile tablet PC or even in the small base station of corresponding intra cell communication.
Cordless communication network 1 covers the geographic area for being divided into cell area, for example, taken by radio access node 12
The cell 11 of business.Radio access node 12 can be radio base station, its be also known as node B or enode b (eNB,
ENodeB), base station transmitting-receiving station, access point base station, base station router, relay wireless device or can be according to for example used
Radio access technologies and term communicated with the wireless device in the cell serviced by radio access node it is any its
His NE.Radio access node 12 can serve one or more cells of such as cell 11.
Cell is geographic area, for example by wireless base station unit in base station site or long-range in the geographic area
Radio covering is provided at the remote location in radio unit (RRU).Cell definitions can also include the frequency band for transmitting
And radio access technologies, it means that two different cells can cover identical geographic area but use different frequencies
Band.Each mark for marking of the cell in the local radio region broadcasted in cell.In whole cordless communication network 1
The one other identification for uniquely identifying cell 11 is also broadcasted in cell 11.Radio access node 12 is by a radio frequency
The air interface or radio interface of operation are communicated with the wireless device 10 in the range of radio access node 12.Wirelessly
Equipment 10 sends data, and radio by radio interface in up-link (UL) transmission to radio access node 12
Access node 12 sends data by air interface or radio interface in downlink (DL) transmission to wireless device 10.
In addition, cordless communication network 1 includes mobility management entity (MME) 13.MME 13 be arranged to paging and
The network node of subsequent process (tagging procedure) including re-transmission, and be also responsible in initial attachment and switching
When select gateway (S-GW) 14 for wireless device 10.S-GW14 is also network node, and is route and forwarding user
Packet, while also function as is used for ambulant anchor point between LTE and other 3GPP technologies.Wirelessly set for idle condition
Standby, when down link data reaches wireless device 10, S-GW14 terminates downlink data path and triggers paging.According to this
The embodiment of text, discloses the paging for the function relevant with wireless device 10.The function is for example for such as conduct
The positioning of sensor or similar wireless device 10 or the activation of wireless device 10 do not require that connection is established.Network node (example
Such as S-GW 14 or MME 13) to identical tracing area (TA) or it is used as all in a part for TA lists by PCH
Radio access node sends the paging request of the positioning purpose for such as wireless device 10.Paging request is thought including MME 13
Want the ID of the wireless device 10 of paging.Radio access node 12 is set up in PCH in response to receiving paging request
(PCH) paging (page) message or paging (paging) message transmitted on.The wireless device 10 for monitoring PCH receives beep-page message
And attempt to set up RRC connections by initiating random access procedure.Radio access node 12 receives RRC from wireless device 10 and connected
Connect request, and therefore it is now know that the wireless device 10 of radio access node 12 is wherein.
According to the embodiments herein, radio access node 12 can based on the paging request for " special paging " or by
It is assigned with knowing for function (such as the purpose of positioning) that need not set up connection (such as RRC connections or core network connection)
Know (knowledge), wireless device 10 is pushed back into (push back) without wireless device 10 in the time knows that what this is
The paging of type.Therefore, radio access node 12 can send the second response (for example, new RRC connection response messages), its
Inform that wireless device 10 should not be reattempted and set up any RRC connections, unless in the presence of the UL data to be sent in UL.
Alternatively or additionally there is provided the embodiments herein, wherein wireless device 10 is provided with paging type
Information or be an actually-received and include the message of following instruction, this is designated as：The paging asked with and the wireless device 10 have
The function that need not set up connection of closing is associated or for the function, is, for example, " special paging " for positioning purposes.
Then wireless device 10 can transmit the response (such as new RRC information) for the function, and it is not RRC connection request, and
And radio access node 12 is set up even without consideration connection.It can be provided for example in beep-page message or in RA responses
The information (such as positioning or similar paging) of paging type or the instruction of function.
Whenever MME 13 or S-GW 14 want paging wireless device 10, it is only used for for example for the purpose of positioning understanding
When which cell wireless device 10 is in, active procedure forces wireless device 10 to set up RRC connections, and this will cause serious
Battery consumption, is the M2M/MTC equipment of key feature especially for wherein economize on electricity, and such as battery of M2M equipment should continue
10 years.However, the embodiments herein provides a solution, wherein in the case where not setting up RRC connections, MME 13 or
S-GW 14 can in order to such as positioning purpose and paging wireless device 10, be for example only used for understand wireless device 10 be in which
In individual cell.Radio access node 12 does not set up connection or release connection, so that the signaling to wireless device 10 is reduced, so that
Reduce the battery consumption at wireless device 10.
Fig. 4 is the combination flow chart and signaling schemes of description some embodiments herein.For the use of wireless device 10
S-GW14 is reached in the request of such as " the special paging " of the function of positioning DL data, and the S-GW14 creates DL data notifications
Message, and DL data notification message is forwarded to MME 13.
Action 401.Then, MME 13 sends paging request to radio access node 12, and radio access node 12 exists
TA is interior or is used as a part for TA lists.When wireless device 10 is in ECM idle conditions, the position of wireless device 10 is in every TA
On the basis of be known to MME 13.Therefore, MME 13 is wrapped with special paging come all radio base stations in paging TA groups
Include radio access node 12.Special paging means the paging request for wireless device 10, and the paging request includes indicating.
The instruction indicates that the paging request function related to wireless device 10 is associated, and the function does not require that connection is established.When
When paging is addressed for PS data and/or wireless device 10 with SAE-TMSI, the startups of MME 13 timer ' 3413'.MME 13
Radio access node 12 can be notified to be broadcasted in the TAI being previously mentioned as the special paging of function for such as positioning
Beep-page message.MME 13 can also send DL data notification ACK messages to S-GW14.
Action 402.Radio access node 12 receives " the special paging " for the function, and builds a RRC paging
Message, such as positioning.In this action, from the viewpoint of wireless device 10, it still can be normal paging
Message, it is special paging for the functional purpose that wireless device 10, which requires no knowledge about in the action this,.But radio connects
Ingress 12 needs to know it for the function " special paging ", so that follow-up whether no data and push back wireless determined
Whether equipment 10 is safe.Then the transmission of radio access node 12 potentially includes multiple paging acknowledgments (PAGING RECORDS)
Beep-page message, with the multiple wireless devices of paging.
Wireless device 10 each paging occasion wake up, and PDCCH transmission in search for wireless device 10 P-RNTI.Such as
Fruit wireless device 10 finds P-RNTI, then carries out the decoding to PDSCH information present in PDCCH.Then, wireless device 10 from
Send decoding beep-page message or " special paging " in the PDSCH resource blocks of beep-page message.Because radio access node 12 is known
This is " special paging ", that is, wireless device 10 can safely be pushed back by knowing, so wireless device 10 now requires no knowledge about it
It is what kind of paging.But in other embodiments, if wireless device 10 is provided the information of the type on paging,
For " the special paging " of the function, then wireless device 10 can transmit new RRC information, and the new RRC information is not that RRC connects
Connect request and radio access node 12 is even without connection foundation is considered it, unless there is radio equipment data in UL
Send.If the presence radio equipment data to be sent in UL, wireless device 10 can transmit normal RRC information, its
For RRC connection request.If wireless device 10 does not find the mark of oneself in PDCCH, it returns to monitor paging occasion.
When wireless device 10 finds its mark in beep-page message, it triggers random access procedure.Radio access node 12 is therefore
By including the instruction of the function in beep-page message the function can be notified to wireless device 10.
Action 403.As the example of the response to beep-page message, wireless device 10 can be transmitted from wireless device 10 to nothing
Line is electrically accessed the random access request of node 12.
Action 404.Radio access node 12 can send back accidental access response to wireless device 10.Wirelessly it is electrically accessed
Node 12 alternately or in addition by the instruction in accidental access response alternatively including the function or can be used as to seeking
The supplement of the instruction in message is exhaled, the function is notified to wireless device 10.
Action 405.It is used as another example for carrying out the response to the beep-page message from radio access node 12, wireless device
Then 10 transmit RRC connection request to radio access node 12.
Action 406.In certain embodiments, radio access node 12 can be based on knowing that paging is for example for positioning
" special paging ", and for example refused by pushing back wireless device 10 in the time connection set up or release connection, without
Wireless device 10 is wanted to know that this is what kind of paging.Radio access node 12 or MME 13 can use the second response (example
Such as new RRC connection response messages) RRC connection request is responded, the second response informs that wireless device 10 should not reattempt foundation
Any RRC connections.As another example of the second response, this alternatively can make in accidental access response in action 404
It is notified for the response to the random access request in action 403.
In certain embodiments, wherein being provided with the instruction associated with function (such as on such as to wireless device 10
Information for the type of the paging of " the special paging " of positioning), as the example of the first response, wireless device 10 can be transmitted
New RRC information, it is not RRC connection request and radio access node 12 even without considering that it connection sets up.
Action 407.Radio access node 12 can also additionally send the 3rd response, example to MME 13 or S-GW 14
Such as page response.For example, which radio access node MME 13 or S-GW 14 know page response from and may be from
Its which sector, therefore MME 13 or S-GW 14 automatically know that wireless device 10 just attempts positioned at where, i.e. wireless device 10
Which radio access node 12 be connected to.Information on position can be sent to MME 13 and be stored in HSS/ ownership
In location register (HLR), or which MME 13 belonging to wireless device 10 can be stored in HSS/HLR.
Described referring now to the flow chart described in Fig. 5 according to some embodiments in radio access node 12
The method action for being used to handle the wireless device 10 in cordless communication network 1 performed.These actions, which need not be taken, to be listed below
Order, but any suitable order can be taken.The action performed in certain embodiments is marked with dotted line frame.Radio
Access node 12 is that the cell 11 in cordless communication network 1 provides service.
Action 501.Radio access node 12 is received to wireless device from such as MME 13 or S-GW 14 network node
10 paging request.Paging request includes instruction, and the instruction indicates that the paging request function relevant to wireless device 10 is related
Connection.For example, the function can be swashing for the positioning of wireless device 10, the status checkout of wireless device 10 and/or wireless device 10
It is living.The function does not require that the connection between wireless device 10 and radio access node 12 is established, and for example the function may
Ask and do not set up RRC connections and/or core network connection.
Action 502.Radio access node 12 is with beep-page message come the wireless device 10 in paging cell 11.Beep-page message
The paging function associated instruction relevant with wireless device 10 can be included.This action 402 corresponded in Fig. 4.Substitute
Ground, is notified in some embodiments of the function in wireless device 10, and the random accessing message transmitted after beep-page message can
With including the instruction as shown in the action 404 in Fig. 4.
Action 503.Radio access node 12 receives also referred to as the first sound in response to beep-page message from wireless device 10
The response answered.The response is such as random access request, RRC connection request or sets up request.The response can include indicating not
The instruction for needing connection to set up, such as bit in responding indicates this point.
Action 504.Radio access node 12 can be to network node (for example when receiving response from wireless device 10
MME 13) another response (herein referred as the 3rd response) is sent, so that network node receives the function to being asked in paging request
Response.This correspond to Fig. 4 in action 407, and can also after following action 505 and 506 or with action 505 and
506 simultaneously perform.
Operation 505.Be established if do not connected, radio access node 12 be then based in paging request this refer to
Show and/or the response that is received in instruction need not connect the instruction of foundation, refusal is from wireless device 10 to being wirelessly electrically accessed
The connection of node 12 is set up.This action 406 corresponded in Fig. 4.The response received can be that such as request is set up in connection
Connection request, and radio access node 12 can be refused based on the instruction in the paging request received the connection please
Ask.The response received can be the RRC information for the instruction that foundation need not be connected with instruction, and then wirelessly be electrically accessed
Node 12 refuses the connection based on the instruction in RRC information.Action 5051.In the case of refusal, radio access node
Then 12 can should not attempt the second response of another connection request by transmission notice wireless device 10.
Action 506.If establishing the connection of network, radio access node 12 is based in the paging request received
The instruction and/or the response that is received in instruction need not connect the instruction of foundation, release is from wireless device 10 to wireless
It is electrically accessed the connection of node 12.This action 406 corresponded in Fig. 4.The response received can be connection request, and wirelessly
Node is electrically accessed based on the instruction in such as paging request to discharge connection.The response received can have to indicate not needing
The RRC information for the instruction set up is connected, and then radio access node 12 discharges company based on the instruction in RRC information
Connect.Action 5061.In the case of the release of connection, radio access node 12 then can be with transmission notice wireless device 10 not
Attempt the second response of another connection request.
Action 505 and 506 is the example of the action 406 in Fig. 4.
The flow chart described referring now to Fig. 6 is located come being used in wireless device 10 described according to some embodiments
Manage the method action of the communication in cordless communication network 1.Cordless communication network 1 includes radio access node 12, the radio
Access node 12 provides service for the wireless device 10 in the cell 11 of radio access node 12.
Action 601.Wireless device receives message from radio access node 12.The message includes paging and and wireless device
10 related functions are requested in association to be indicated, the function does not require to set up wireless device 10 and radio access node 12
Between connection.For example, the function does not require to set up radio resource control connection and/or core network connection, the function can
To be the activation of such as positioning of wireless device 10, the status checkout of wireless device 10 and/or wireless device 10.What is received disappears
Breath can be beep-page message or random accessing message, referring to the action 402,404,502 for the transmission for disclosing the message.Stochastic accessing
Message can be RA responses, and then before instruction of the radio access node 12 in transmission RA responses to wireless device
Random access leader sequence transmission makes a distinction.This can be for example, by being used for its access by assigning to have to wireless device 10
The special resource of trial or the appointment of lead code are completed.The appointment can be carried to wireless device 10 for example in beep-page message
For/indicate.The instruction can be related to the paging received in the prior operation of process；Refer to triggering such as Stochastic accessing mistake
The paging of journey, receives the instruction in the random access procedure during accidental access response.Indicate to include on this
The other information in addition to the connection between wireless device 10 and radio access node 12 need not be set up of function.
Action 602.Wireless device 10 is in response to the message that is received to the transmission of radio access node 12 also referred to as first
The response of response, the response includes indicating that the instruction of foundation need not be connected.The response transmitted can be not required to instruction
The RRC information of the instruction of foundation is connected, such as request is set up in the connection with this instruction.Response including the instruction is shown
Example can be random access request (referring to action 403 above) or RRC connection request (referring to action 405 above).
Action 603.Wireless device 10 can be received from radio access node 12 notifies wireless device 10 to attempt separately
Second response of one connection request.
In order to perform methods herein, provided herein is radio access node.Fig. 7 is described according to the embodiments herein
For the block diagram for the radio access node 12 for handling the wireless device 10 in cordless communication network 1.Radio access node 12
It is configured as serving the cell 11 in cordless communication network 1.
Radio access node 12 is for example configured as the net from such as MME 13 or S-GW 14 by receiving module 701
Network node receives the paging request to wireless device 10.Paging request includes an instruction, and the wherein instruction indicates paging request
The function related to wireless device 10 is associated, the function do not require to set up wireless device 10 and radio access node 12 it
Between connection.The function may, for example, be the positioning of wireless device 10；The status checkout of wireless device 10；And/or wireless device
10 activation.The function may not be needed for example to set up radio resource control connection and/or core network connection.Receiving module
701 can be the processor or processing component 702 of radio access node 12.
Radio access node 12 is for example further configured to beep-page message come paging cell by paging module 703
Wireless device in 11.Paging module 703 can be the processor or processing component 702 of radio access node 12.Paging disappears
Breath or random accessing message can include the associated instruction of the paging function relevant with wireless device 10.
Radio access node 12 is for example additionally configured to by means of receiver module 704 or transceiver：Receive and
From the response in response to beep-page message of wireless device 10.Receiver module 704 can be the processing of radio access node 12
Device or processing component 702.
Radio access node 12 is for example configured as by refusal module 705：Based in the paging request received
Indicate that the instruction of foundation need not be connected in the response for indicating and/or being received, refusal connects from wireless device 10 to radio
The connection of ingress 12 is set up.Refusal module 705 can be the processor or processing component 702 of radio access node 12.
Radio access node 12 is for example configured as by release module 706：Based in the paging request received
Instruction in the response for indicating and/or being received need not connect the instruction of foundation, and release connects from wireless device 10 to radio
The connection of ingress 12.Release module 706 can be the processor or processing component 702 of radio access node 12.
The response received can be connection request, and then radio access node 12, refusal module 705, release
Module 706 and/or processing component 702 can be configured as：Based on the instruction in the paging request received, refuse connection request
Or release connection.Then radio access node 12 for example can be configured as by transport module 707：Transmission notice is wireless
Equipment 10 should not attempt the second response of another connection request.Transport module 707 can be the place of radio access node 12
Manage device or processing component 702.
The response received can be that, with the RRC information for indicating the instruction that need not connect foundation, and radio connects
Ingress 12, refusal module 705, release module 706 and/or processing component 702 can be configured as：Based in RRC information
Indicate to set up or release connection to refuse connection.
Radio access node 12 is for example configured as by sending module 708：When receiving response from wireless device 10
When, send the 3rd to network node (such as MME13 and/or S-GW14) and respond.Sending module 708 can wirelessly be electrically accessed section
The processor or processing component 702 of point 12.
Radio access node 12 is for example configured as by sending module 708：When receiving response from wireless device 10
When, send the 3rd to network node (such as MME13 and/or S-GW14) and respond.Sending module 708 can wirelessly be electrically accessed section
The processor or processing component 702 of point 12.
The embodiment for being used to handle wireless device 10 herein can be by the radio access node 12 described in Fig. 7
Processing component 702 (such as including one or more processors) realize that it can be with for example together with computer program code
Perform function and/or the method action of embodiment hereof.According to embodiment described herein method can be for example by calculating
Machine program 709 or computer program product realize, the computer program 709 or computer program product include instructing (i.e. soft
Part code section), when performing at least one processor so that at least one computing device is by radio access node
12 actions described herein performed.Computer program 709 can be stored in (such as disc of computer-readable recording medium 710
Or the like) on.Instruction can be included by being stored thereon with the computer-readable recording medium 710 of computer program 709, when this refers to
When order is performed at least one processor so that the sheet that at least one computing device is such as performed by radio access node 12
Action described by text.In certain embodiments, computer-readable recording medium can be the computer-readable storage of nonvolatile
Medium.
Radio access node 12 also includes memory 711.Memory includes one or more units, and this is one or more
Unit be used for storage on such as configured transmission, RA data, be used to perform the application of method disclosed herein when running
Deng data.
In order to perform methods herein, there is provided herein wireless device 10.Fig. 8 is to describe the use according to the embodiments herein
The block diagram of the wireless device 10 of communication in processing cordless communication network 1.Wireless device 10 is configured as by radio communication
Radio access node 12 in the cell 11 of radio access node 12 in network 1 is serviced.
Wireless device 10 including receiving module 801 or receiver (RX) for example by being configured as from radio access node
12 receive message.The message includes the requested instruction in association of the paging function related to wireless device 10.The function is not
It is required that the connection between wireless device 10 and radio access node 12 is established.The message received can be beep-page message
(that is, beep-page message includes for example indicating the instructions of one or more bits of the function), or random accessing message, for example including
Indicate the RA responses of one or more bits of function.The function may, for example, be the positioning of wireless device 10, wireless device 10
Status checkout and/or wireless device 10 activation.The function may not require to set up radio resource control connection and/or core
Heart network connection.Wireless device 10 and/or receiving module 801 can be configured as receiving the second sound from radio access node 12
Should, second response notifies wireless device 10 to attempt another connection request.
Wireless device 10 be configured as example by including transport module 802 with response to the message received come to wireless
It is electrically accessed node 12 and sends response, the response includes indicating that the instruction of foundation need not be connected.Response can be such as RRC connections
The Radio Resource Control message of request is set up, it, which has, indicates that the instruction of foundation need not be connected, and the instruction can include referring to
Show the specific random access lead code sequence of function.
Being used to handle the embodiment of communication herein can realize that it is for example including institute in Fig. 8 by processing component 803
One or more of the wireless device 10 of description processor, it can perform this paper for example together with computer program code
Function and/or the method action of embodiment.According to embodiment described herein method can be by such as computer program 804
Or computer program product is realized, it includes instructing (i.e. software code partition), when performing at least one processor,
So that the action described herein that at least one computing device is performed by wireless device 10.Computer program 804 can be deposited
Storage is on computer-readable recording medium 805 (such as disc or the like).It is stored thereon with the computer of computer program 804
Readable storage medium storing program for executing 805 can include instruction, when instruction is performed at least one processor so that at least one processor
Perform the action described herein such as performed by wireless device 10.In certain embodiments, computer-readable recording medium can be with
It is the computer-readable recording medium of nonvolatile.
Wireless device 10 also includes memory 806.Memory 806, which includes one or more units, to be used to store on such as
The data of configured transmission, RA data, application for performing method disclosed herein when running etc..
The personnel for being familiar with communication scheme will readily appreciate that functional part or module can use Digital Logic and/or one
Individual or multiple microcontrollers, microprocessor or other digital hardwares are realized.In certain embodiments, it is some in various functions
Or can all realize together, such as independent set in single asic (ASIC) or at two or more
In standby, there is appropriate hardware and/or software interface between two or more independent equipment.For example, some functions can
To be realized on the processor shared with other functional units of wireless terminal or network node.
Alternatively, some function element of the processing component discussed can be provided by using specialized hardware, and its
He is provided in association with function element with the hardware for performing software with appropriate software or firmware.Therefore, it is as used herein
Term " processor " or " controller " not exclusively refer to the hardware for being able to carry out software, and can be impliedly without restriction
Ground include digital signal processor (DSP) hardware, the read-only storage (ROM) for storing software, for store software and/or
The random access memory and nonvolatile memory of program or application data.Its of routine and/or customization can also be included
His hardware.The designer of communication control processor will be understood that the compromise of cost intrinsic in these design alternatives, performance and maintenance.
It should be appreciated that described above and accompanying drawing represents the non-limiting example for the method and apparatus instructed herein.Therefore, originally
Device of the invention and technology that culture and education is led are not limited by the foregoing description the limitation with accompanying drawing.On the contrary, the embodiments herein is only by appended
Claim and its legal equivalents are limited.
Claims (26)
1. a kind of wireless device (10) being used in handling cordless communication network (1) performed in radio access node (12)
Method, the cell (11) that the radio access node is served in the cordless communication network (1)；Methods described includes：
- receive the paging request that (501) are directed to the wireless device (10), the paging request bag from network node (13,14)
Instruction is included, the function of indicating that the paging request is relevant with the wireless device (10) is associated, the function
Do not require that the connection between the wireless device (10) and the radio access node (12) is established；
- with beep-page message come the wireless device in paging (the 402,502) cell (11)；
- receive the response in response to the beep-page message that (503) come from the wireless device (10)；And
- need not be connected based on the instruction in the instruction in the paging request received and/or the response received
The instruction of foundation, refusal (406,505) is set up from the wireless device (10) to the connection of the radio access node (12),
Or connection of the release (406,506) from the wireless device (10) to the radio access node (12).
2. according to the method described in claim 1, wherein the response received is connection request, and the refusal (505) or
The release (506) based on the instruction in the paging request received and notifies described including transmission (5051,5061)
Wireless device (10) should not attempt the second response of another connection request.
3. according to the method described in claim 1, wherein the response received is that have to indicate that the instruction of foundation need not be connected
Radio Resource Control message, and it is described refusal (505) or it is described release (506) disappeared based on the radio resource control
The instruction in breath.
4. according to the method in any one of claims 1 to 3, wherein the beep-page message or random accessing message include institute
State the associated instruction of paging (502) function relevant with the wireless device (10).
5. method according to any one of claim 1 to 4, wherein the function is determining for the wireless device (10)
The activation of position, the status checkout of the wireless device (10) and/or the wireless device (10).
6. method according to any one of claim 1 to 5, in addition to
- when receiving the response from the wireless device (10), send (407,504) to the network node (13,14)
3rd response.
7. method according to any one of claim 1 to 6, wherein the function does not require that radio resource control is connected
And/or core network connection is established.
8. a kind of method for being used to handle the communication in cordless communication network (1) performed in wireless device (10), the nothing
Line telecommunication network (1) includes radio access node (12), and the radio access node (12) serves the radio
The wireless device (10) in the cell (11) of access node (12), methods described includes
- (601) message is received from the radio access node (12), the message includes paging and and the wireless device
(10) relevant function is requested in association indicates, the function does not require the wireless device (10) and the radio
Connection between access node (12) is established；And
- in response to the message that is received, to the radio access node (12) transmission (403,405,602) response, the sound
It should include indicating that the instruction of foundation need not be connected.
9. method according to claim 8, wherein the message received is beep-page message or random accessing message.
10. the method according to any one of claim 8 to 9, wherein the response transmitted need not be connected with instruction
Connect the Radio Resource Control message of the instruction of foundation.
11. the method according to any one of claim 8 to 10, wherein the function is determining for the wireless device (10)
The activation of position, the status checkout of the wireless device (10) and/or the wireless device (10).
12. the method according to any one of claim 8 to 11, wherein the function does not require that radio electric resources are controlled
Connection and/or core network connection are established.
13. one kind is used for the radio access node (12) for handling the wireless device (10) in cordless communication network (1), the nothing
Line is electrically accessed node (12) and is configured as serving cell (11) in the cordless communication network (1)；Wherein described radio
Access node (12) is configured as：
The paging request for the wireless device (10) is received from network node (13,14), the paging request includes indicating,
The function of indicating that the paging request is relevant with the wireless device (10) is associated, and the function does not require institute
The connection stated between wireless device (10) and the radio access node (12) is established；
With beep-page message come the wireless device in cell described in paging (11)；
Receive the response in response to the beep-page message from the wireless device (10)；And
It need not be connected and built based on the instruction in the instruction in the paging request received and/or the response received
Vertical instruction, refusal is set up from the wireless device (10) to the connection of the radio access node (12), or is discharged from institute
State the connection that wireless device (10) arrives the radio access node (12).
14. radio access node (12) according to claim 13, wherein the response received is connection request, and
The radio access node (12) is configured as refusing the connection based on the instruction in the paging request received
Set up or discharge it is described connect and be additionally configured to wireless device described in transmission notice (10) should not attempt another connection please
The second response asked.
15. radio access node (12) according to claim 13, wherein the response received is not required to instruction
The Radio Resource Control message of the instruction of foundation is connected, and the radio access node (12) is additionally configured to be based on
The connection is set up or discharged to the instruction in the Radio Resource Control message to refuse the connection.
16. the radio access node (12) according to any one of claim 13 to 15, wherein the beep-page message or
Random accessing message includes the paging (502) the function associated instruction relevant with the wireless device (10).
17. the radio access node (12) according to any one of claim 13 to 16, wherein the function is：It is described
The activation of the positioning of wireless device (10), the status checkout of the wireless device (10), and/or the wireless device (10).
18. the radio access node (12) according to any one of claim 13 to 17, is additionally configured to：When from described
When wireless device (10) receives the response, send the 3rd to the network node (13,14) and respond.
19. the radio access node (12) according to any one of claim 13 to 18, wherein the function is not required
Radio resource control is connected and/or core network connection is established.
20. one kind is used for the wireless device (10) for handling the communication in cordless communication network (1), wherein the wireless device (10)
Connect in the cell (11) for the radio access node (12) being configured as in the cordless communication network (1) by the radio
Ingress (12) is serviced；The wireless device (10) is configured as：
From the radio access node (12) receive message, the message include paging with and the wireless device (10) it is relevant
Function it is requested in association indicate, the function do not require the wireless device (10) and the radio access node
(12) connection between is established；And
In response to the message received, to the radio access node (12) transmission response, the response is not required to including instruction
Connect the instruction of foundation.
21. wireless device (10) according to claim 20, wherein the message received is beep-page message or random accessing message.
22. the wireless device (10) according to any one of claim 20 to 21, wherein the response is that have to indicate not
Need the Radio Resource Control message of the instruction of connection foundation.
23. the wireless device (10) according to any one of claim 20 to 22, wherein the function is described wirelessly to set
The activation of the positioning of standby (10), the status checkout of the wireless device (10) and/or the wireless device (10).
24. the wireless device (10) according to any one of claim 20 to 23, wherein the function does not require radio
Resources control is connected and/or core network connection is established.
25. a kind of computer program, including instruction, the instruction make when being performed at least one processor it is described at least
Method of one computing device according to any one of claim 1 to 7 or 8 to 12.
26. a kind of computer-readable recording medium for being stored thereon with computer program, the computer program includes instruction, institute
Instruction is stated when being performed at least one processor, make at least one described computing device according to claim 1 to 7 or
Method any one of 8 to 12.
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| PCT/SE2014/051161 WO2016056954A1 (en) | 2014-10-07 | 2014-10-07 | Paging procedure for a wireless device, a radio access node, methods performed therein, a computer program, and a computer-readable storage medium |
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| CN107079234B CN107079234B (en) | 2021-04-09 |
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| EP (1) | EP3205123B1 (en) |
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| CN111165034A (en) * | 2017-10-06 | 2020-05-15 | 瑞典爱立信有限公司 | Node and method for processing paging |
| CN111165034B (en) * | 2017-10-06 | 2023-04-14 | 瑞典爱立信有限公司 | Node and method for processing paging |
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| CN112189349B (en) * | 2018-05-31 | 2023-06-27 | 株式会社Ntt都科摩 | Wireless access network |
| CN110650549A (en) * | 2018-06-26 | 2020-01-03 | Idac控股公司 | Method, device and system for fog RAN resource solicitation |
| CN110650549B (en) * | 2018-06-26 | 2024-04-05 | 交互数字专利控股公司 | Method, apparatus and system for foggy RAN resource solicitation |
| CN112740765A (en) * | 2018-09-27 | 2021-04-30 | 瑞典爱立信有限公司 | Flexible user equipment grouping for wake-up signals |
| CN113785653A (en) * | 2019-05-02 | 2021-12-10 | Lg电子株式会社 | Method and apparatus for combining MO EDT procedure and MT EDT procedure in wireless communication system |
| CN111836219A (en) * | 2019-08-12 | 2020-10-27 | 维沃移动通信有限公司 | Message transmission method and communication equipment |
| WO2021083353A1 (en) * | 2019-11-01 | 2021-05-06 | 维沃移动通信有限公司 | Connection processing method and communication device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3205123A1 (en) | 2017-08-16 |
| US20180242275A1 (en) | 2018-08-23 |
| US10264546B2 (en) | 2019-04-16 |
| EP3205123B1 (en) | 2020-04-22 |
| WO2016056954A1 (en) | 2016-04-14 |
| CN107079234B (en) | 2021-04-09 |
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